Am29LV800B 11
PRELIMINARY
Table 3. Am29LV800BB Bottom Boot Block Sector Address Ta ble
Note for Tables 2 and 3: Address range is A18:A-1 in byte mode and A18:A0 in word mode. See “Word/Byte Configuration”
section for more information.
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended f or programming equipment
to automatically match a de vice to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
When using programming equipment, the autoselect
mode requires V
ID
(11.5 V to 12.5 V) on address pin A9.
Address pins A6, A1, and A0 must be as shown in Tab le
4. In addition, when verifying sector protection, the sec-
tor address must appear on the appropriate highest
order address bits (see Tables 2 and 3). Table 4 shows
the remaining address bits that are don’t care. When all
necessary bits have been set as required, the program-
ming equipment ma y then read the corresponding iden-
tifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 5. This method
does not require V
ID
. See “Command Definitions” for
details on using the autoselect mode.
Sector A18 A17 A16 A15 A14 A13 A12
Sector Size
(Kbytes/
Kwords)
Address Ran g e (in hexade cim al )
(x8)
Address Ran g e
(x16)
Address Range
SA0000000X 16/8 00000h–03FFFh 00000h–01FFFh
SA10000010 8/4 04000h–05FFFh02000h–02FFFh
SA20000011 8/4 06000h–07FFFh03000h–03FFFh
SA300001XX 32/16 08000h–0FFFFh04000h–07FFFh
SA40001XXX 64/32 10000h–1FFFFh08000h–0FFFFh
SA50010XXX 64/32 20000h–2FFFFh10000h–17FFFh
SA60011XXX 64/32 30000h–3FFFFh18000h–1FFFFh
SA70100XXX 64/32 40000h–4FFFFh20000h–27FFFh
SA80101XXX 64/32 50000h–5FFFFh28000h–2FFFFh
SA90110XXX 64/32 60000h–6FFFFh30000h–37FFFh
SA100111XXX 64/32 70000h–7FFFFh38000h–3FFFFh
SA111000XXX 64/32 80000h–8FFFFh40000h–47FFFh
SA121001XXX 64/32 90000h–9FFFFh48000h–4FFFFh
SA131010XXX 64/32 A0000h–AFFFFh50000h–57FFFh
SA141011XXX 64/32 B0000h–BFFFFh58000h–5FFFFh
SA151100XXX 64/32 C0000h–CFFFFh60000h–67FFFh
SA161101XXX 64/32 D0000h–DFFFFh68000h–6FFFFh
SA171110XXX 64/32 E0000h–EFFFFh70000h–77FFFh
SA181111XXX 64/32 F0000h–FFFFFh78000h–7FFFFh
